1 //===--- RISCV.h - Declare RISCV target feature support ---------*- C++ -*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 // 9 // This file declares RISCV TargetInfo objects. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 14 #define LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 15 16 #include "clang/Basic/TargetInfo.h" 17 #include "clang/Basic/TargetOptions.h" 18 #include "llvm/ADT/Triple.h" 19 #include "llvm/Support/Compiler.h" 20 21 namespace clang { 22 namespace targets { 23 24 // RISC-V Target 25 class RISCVTargetInfo : public TargetInfo { 26 protected: 27 std::string ABI, CPU; 28 bool HasM = false; 29 bool HasA = false; 30 bool HasF = false; 31 bool HasD = false; 32 bool HasC = false; 33 bool HasB = false; 34 bool HasV = false; 35 bool HasZba = false; 36 bool HasZbb = false; 37 bool HasZbc = false; 38 bool HasZbe = false; 39 bool HasZbf = false; 40 bool HasZbm = false; 41 bool HasZbp = false; 42 bool HasZbproposedc = false; 43 bool HasZbr = false; 44 bool HasZbs = false; 45 bool HasZbt = false; 46 bool HasZfh = false; 47 bool HasZvamo = false; 48 bool HasZvlsseg = false; 49 50 static const Builtin::Info BuiltinInfo[]; 51 52 public: 53 RISCVTargetInfo(const llvm::Triple &Triple, const TargetOptions &) 54 : TargetInfo(Triple) { 55 LongDoubleWidth = 128; 56 LongDoubleAlign = 128; 57 LongDoubleFormat = &llvm::APFloat::IEEEquad(); 58 SuitableAlign = 128; 59 WCharType = SignedInt; 60 WIntType = UnsignedInt; 61 HasRISCVVTypes = true; 62 } 63 64 bool setCPU(const std::string &Name) override { 65 if (!isValidCPUName(Name)) 66 return false; 67 CPU = Name; 68 return true; 69 } 70 71 StringRef getABI() const override { return ABI; } 72 void getTargetDefines(const LangOptions &Opts, 73 MacroBuilder &Builder) const override; 74 75 ArrayRef<Builtin::Info> getTargetBuiltins() const override; 76 77 BuiltinVaListKind getBuiltinVaListKind() const override { 78 return TargetInfo::VoidPtrBuiltinVaList; 79 } 80 81 const char *getClobbers() const override { return ""; } 82 83 ArrayRef<const char *> getGCCRegNames() const override; 84 85 int getEHDataRegisterNumber(unsigned RegNo) const override { 86 if (RegNo == 0) 87 return 10; 88 else if (RegNo == 1) 89 return 11; 90 else 91 return -1; 92 } 93 94 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; 95 96 bool validateAsmConstraint(const char *&Name, 97 TargetInfo::ConstraintInfo &Info) const override; 98 99 bool hasFeature(StringRef Feature) const override; 100 101 bool handleTargetFeatures(std::vector<std::string> &Features, 102 DiagnosticsEngine &Diags) override; 103 104 bool hasExtIntType() const override { return true; } 105 }; 106 class LLVM_LIBRARY_VISIBILITY RISCV32TargetInfo : public RISCVTargetInfo { 107 public: 108 RISCV32TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 109 : RISCVTargetInfo(Triple, Opts) { 110 IntPtrType = SignedInt; 111 PtrDiffType = SignedInt; 112 SizeType = UnsignedInt; 113 resetDataLayout("e-m:e-p:32:32-i64:64-n32-S128"); 114 } 115 116 bool setABI(const std::string &Name) override { 117 if (Name == "ilp32" || Name == "ilp32f" || Name == "ilp32d") { 118 ABI = Name; 119 return true; 120 } 121 return false; 122 } 123 124 bool isValidCPUName(StringRef Name) const override; 125 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 126 bool isValidTuneCPUName(StringRef Name) const override; 127 void fillValidTuneCPUList(SmallVectorImpl<StringRef> &Values) const override; 128 129 void setMaxAtomicWidth() override { 130 MaxAtomicPromoteWidth = 128; 131 132 if (HasA) 133 MaxAtomicInlineWidth = 32; 134 } 135 }; 136 class LLVM_LIBRARY_VISIBILITY RISCV64TargetInfo : public RISCVTargetInfo { 137 public: 138 RISCV64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) 139 : RISCVTargetInfo(Triple, Opts) { 140 LongWidth = LongAlign = PointerWidth = PointerAlign = 64; 141 IntMaxType = Int64Type = SignedLong; 142 resetDataLayout("e-m:e-p:64:64-i64:64-i128:128-n64-S128"); 143 } 144 145 bool setABI(const std::string &Name) override { 146 if (Name == "lp64" || Name == "lp64f" || Name == "lp64d") { 147 ABI = Name; 148 return true; 149 } 150 return false; 151 } 152 153 bool isValidCPUName(StringRef Name) const override; 154 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; 155 bool isValidTuneCPUName(StringRef Name) const override; 156 void fillValidTuneCPUList(SmallVectorImpl<StringRef> &Values) const override; 157 158 void setMaxAtomicWidth() override { 159 MaxAtomicPromoteWidth = 128; 160 161 if (HasA) 162 MaxAtomicInlineWidth = 64; 163 } 164 }; 165 } // namespace targets 166 } // namespace clang 167 168 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_RISCV_H 169